Signaling-horn.



A. A. KENT. SIGNALING HORN.

' APPLIGATION FILED FEB. 28, 1910. 1,001,046. Paten ed Aug. 22, 1911.

2 sums-SHEET 1.

WITNESSES k E BY Z W 7 E? M ATTORNEY A. v A. KENT. SIGNALING .HORN. APPLICATION FILED FEB. 28, 1910.

Patented Aug. 22, 1911 WITNESSES clear, and complete disclosure.

the front end of the same being-prov;

ARTHUR A TwATER KENT, 0F PHILADELPHIA, PENNSYLVANIA SIGNALING-HORN.

Specification of Letters Patent.

Patented Aug. 22, 1911s;

Application fil ed February 28, 1910. Serial No. 546,511.

To all whom it may concern: I 7

Be it known that I, ARTHUR ATWATER KENT, a citizen of. the United States, and a resident of the city of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Signaling- Horns, of which the following is. a full,

My invention relates to signaling, horns such as are adapted for use on automobiles or similar vehicles, and particularly tohorns of the character above indicated in which sound is produced by vibrating a diaphragm by electro-magnetic mechanism. 1

The objects of my invention are to pro: duce a horn or signaling device which is simple, efficient, compact, neat and attractive, which can be produced at .a low cost and is readily assembled andadjnsted;

A further object of, my invention is to mount all the various partsupon or'within a single integral casing, which casing may be formed of cast metal, or in any other suitable manner.

Further objects of my invention will appear in the specification and claims below,

Referring to the drawings forming apart of this specification inwhich the same reference characters are 'used to designate the same parts throughout the Various views, Figure 1 is a longitudinal sectional view of my improved horn; Fig. 2 is a similarrlom itudinal sectional view taken on the line III'I of Fig. 1; Fig. 3 is an end View of my improved horn with the cap, removed showing the interior ofthe casing; Fig. 4;

is a transverse sectional view of the-casmg, and Fig. 5 1s a fragmentary view of a detall of construction. 4

In carrying out my invention'I provide a casing preferably of cast metal, the casing being indicated in the drawings by 1. The said casing is hollow and preferably cylin drical for the greater portion of itsfllengdth',

with a fflange 2, the face of -which ispro vided with a recess or chamber 3. lThe 'rea i" wall of the chamber 3 is formedby suita e be mounted as will be later described. The

phragm chamber 10 at the smaller end oflthe V amplifying portion '8. The recess or-chain cross braces or ties 4, the same-forming web upon which the elect-romagnets= may i-lfwith casing is preferably provided on one side with an integral extension or support 5, b means of which'the horn may be attac to the dash-board of afveh-icle or, to, .'an other suitable support, as shown iii F The diaphragm 1s preferably secured 'tofthe outer edge of the flange 2 by being. clam between the said flange-2 and the flange Z the amplifying portion 8 of they ho Screws 9 passing throu 7 suitable openings in the flange 7', through the periphery of the diaphragm, andthreaded into the flange 2 of the casing 1 hold the said partsfirmly together. The flange 7 of the amplify" portion of the horn-is ofl'setfor a short dis ta-nce from the diaphragm to form jasdia ber 3 to the rear of the diaphragm may also: ,v Q be called a diaphragm chamber, since it is", 1 within these spaces or chambers that the diaphragm is mounted.

The magnets 11 are mounted upon and secured in any suitable manner to a web or 75., cross brace 4E, and extend from said brace or Y cross piece'longitudinally of the casing, 1

and toward the rear of the same I have I shown the cores 11" ofnthe magnets, 1111s l 1 being forced into suitable holes 4'. in the braces or tiesz i as the-preferred manner of."

mounting the magnets in :the casing-l1; Upon the interior of the cylindrical casing. 1, and preferablyupon opposite-sides thereof, I arrangewtwo integral lugs'l12a1id16 which may extend from the rear end of the 1 said casing 1 to the webs in the front 'there- 10f subst-antiallyfor; the fijilll'l'e'ngth of. the

casing. Upon the lug 12 Iseure a spring 13, the outer end of which carries an arnia ture 14 arranged adjacent the, cores 11 of r the magnets 11, the saidspring 13 beingpreferably provided with contact ,point 15, 1

extending up and-away fro the mgt 'mfg v Upon the lug 16, but suitablyinsulated, 1915 therefrom, as by insulation 17?, aisiu-a lsta- "t-ionary contact point 17, arranged adjacent to the movable, contact :point 1 so as to be normally adjustedzin :contactfithrefl 1 Upon opposite sidesgofjtlie gang- 1 10 I provide suitable binding posts 18-19 the binding post 18 being insulated from the casing 1 by being passed through a suitable insulating thimble or washer 20, while the other 19 of said binding posts may be grounded or directly attached to the metal- .lic casing. Thebinding post18 is connected by a-suitable wire to one end of the winding of one of the electro-magnets 11, and the two coils are connected together in series, the other end of the wire as it passes from the second of said electro-magnetic coils is attached to the insulated stationary'contact points 17. The other of said binding posts 19 is directlyattached to and is uninsulatedfrom the casing? With this arrangement it willbev observed that when a electric circuit is closed bywattaching the two binding posts totheopposite terminals on electric circuit the armature llwillvibrate as is usual in an elect-ro-magnetic vibrator.

- Rigidlyfsecured tothe center of the'diaphragm 6 and preferably longitudinally'adqustable. with respect thereto s a rod 21 extending rearwardly, from-the diaphragm and havihgits-rear end terminate close to but just out of actualt con'tact with the arma:

. ture 14, a suitable hole oropening 22 being provided in the braces or cross'ties 14 for the P sSage-Aof'said rod. r 4

For the purposeof permitting-a longitudinal adjustment of the'rod 'or' anvil-21 the center',of1.the diaphragm may be provided with a splitnut 23 through which the threadedouter: end of the rod 21 is passed,

, so that by turningthe rod 21 within the nut the rear end of'the rod may be brought'into the first .efi'ective position with respect to'the armature. ,The armature is preferablymade rather heavy. so -that when 1t is vibrated by the electric current passing through the magnet it will strikeja rat-her heavy'b'low u'pon the rear. end ofthe' rod21,-thusgivihg the diaphragmda great amplitude of vibration.

With the .Lhornz or signaling device ar-" ranged asiabove described it "is I only n'eces sa-ry to closea-circuit by a-suitable push'butv ten or other-"suitable switch to-cause the armature 14; to vibrate with great rapidity;

and in vibrati'ngtostrikeagalnst the'e'nd of the rod or anvil 21 ,and thisblow being com: mun'icated throng .-the rod=or"' anvil 21 to the "diaphrag msets thediaphragm into a' correspondingly rapid vibration and pro'- duces aivery loudand distinctive tone or 'sound,'which .tlansmittedto the air in the I d'iaphrag'm chambergm, and thence-through I v the amplifying =portion:'or megaphone of the horn, is emitted throughthe bell of the horn Toin'close the,;e'nd:of "my horn I prefe'r ably make the 'irearLend' of the casing 1 of a slightly reduced. external diameter, as 'plainly-shown in Figs; 1 and-2, so that a cupshaped cap 24 of spun or pressed metal may be fitted tightly over the same and form the rear end of the casing. ,To hold'the cap in cap or. cover 24 which cooperate with similarly disposed .pins 26, and 27. LPrefer to use'a machine screw as the pin 27, thus enabling-me to securely lock the cap in place on the end of thecasing 1 by merely turning said screw after the parts have been assembled, thus c'lamping ;the casing under the head of. the said screw. The cap thus provides a substantially Having thus described my I claim and desire to protect ent of the United States: is: I

1. In a signaling horn a combination ofa cylindrical ca'sing having am-integral flange atthe front end 'thereof, said flange being provided with a recess to form a diaphragm weatherproof closure for the end of the casing. a

vention what, by Letters-Pat.

place I prefer to proyide one or more ,bayonet joi-nts25 on'opposite' sides ofthe said chamber, the-interior ,of said casing-being,

provided with "longitudinally arranged in:-

teg'ral lugs, an armature mounted to vibrate, I

on'on'e of said lugs, and a stationary con-. tact point support mounted upon the other of "said lugs.

H In a'Sig?idling horri .a oi binatiolior a cylindrical casing'having aninte at the front end thereof, said flange. being provided with arecess to form a diaphragm chamber, the interior of said casing being;

p'roynided with longitudinally arranged inte'gral lugs, an armature mounted to vibrate on one; of said lugs, and a stationary con: tact point support mounted upon the other of sa d lugs, the said flange having an integral extensionfjfor securing the same to a suitable support. 1'

3. Ina signaling hornfa support and cas ing integral therewithfliand having'at. one I end' a diaphragm chamber and a diaphragm 'offt he same "cham r, int g Supports on the sides of said chamber,i a ivibrating.

mounted in operative 're1ation.. theret0,andsecured to saidcasing, and at the. ot ierend 1 .0;

armature mounted on one; of said supports, i. a flcontact ipoint support mountedaon. the. 1

other of sa d supports, and a magnetic coil mounted within said chamber with one endsaid casing and interal therewith, and extending longitudihal'y 'of the same, a stationary contact point support mounted upon In witness whereof I ha e hereunto set said second lug, a cap fitting over the end 'my hand this twenty fourth day of Februof said casing, and inclosing the rearof the ary 1910.

same, and an amplifying --horn having its ARTHUR ATWATER KENT. 5 smaller end provided with a flange between WVitnesses: I

Y which flange and the flange on said casing GEO. H. RAPsoN,

the diaphragm is clampedf JAMES A. MARTIN.

Copies of this patent nay be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, ,J). 0. 

